home

best.zip.exe

SafeApp

Sergey Petrov

This is a WebPick installer that bundles (with very minimal user consent) a number of adware browser extensions using the JustPlug.it browser framework. The application best.zip.exe, “Installer for SafeApp” by Sergey Petrov has been detected as adware by 30 anti-malware scanners. The program is a setup application that uses the WebPick InstalleRex (Tarma) installer. The setup program uses Web-Pick's InstalleRex download manager and installer to bundle potentially unwanted ad-supported software which includes toolbars and browser extensions through a pay-per-install monetization scheme.
Publisher:
SafeSoft  (signed by Sergey Petrov)

Product:
SafeApp

Description:
Installer for SafeApp

Version:
2014.2.23.1948

MD5:
b57f009809e0c7e0053b1ced3031c222

SHA-1:
1541be88d5e4b08ee7c1271919ff33d4014511f3

SHA-256:
af3c74112997fcb22d0cec5781cdd58a275263abae47bd21293d63502db7e7a9

Scanner detections:
30 / 68

Status:
Adware

Explanation:
Uses the InstalleRex from WebPick Internet Holdings to install bundled add-ons including toolbars and other web browser extensions.

Analysis date:
4/26/2024 3:24:38 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Application.Generic.621656
898

Agnitum Outpost
Trojan.AntiFW
7.1.1

AhnLab V3 Security
PUP/Win32.TSULoader
2014.08.21

Avira AntiVirus
Adware/InstallRex.duh
7.11.168.120

avast!
Win32:InstalleRex-BI [PUP]
140813-1

AVG
Trojan horse Crypt_s.GAB
2014.0.3986

Bitdefender
Application.Generic.621656
1.0.20.1160

Bkav FE
W32.FamVT.AntiFWK.Trojan
1.3.0.4959

Clam AntiVirus
Win.Trojan.Antifw-29
0.98/19297

Comodo Security
Application.Win32.InstalleRex.KG
19261

Dr.Web
Trojan.WebPick.29
9.0.1.05190

ESET NOD32
Win32/InstalleRex.P potentially unwanted application
7.0.302.0

F-Prot
W32/InstallRex.B
4.6.5.141

F-Secure
Application.Generic.621656
11.2014-20-08_4

G Data
Application.Generic.621656
14.8.24

IKARUS anti.virus
PUA.InstallRex
t3scan.1.7.5.0

K7 AntiVirus
Unwanted-Program
13.183.13113

Kaspersky
Trojan.Win32.AntiFW
15.0.0.494

Malwarebytes
PUP.Optional.Installex
v2014.08.20.08

McAfee
PUP-FHQ
5600.7032

MicroWorld eScan
Application.Generic.621656
15.0.0.696

NANO AntiVirus
Riskware.Win32.Downware.cukhmp
0.28.2.61721

Panda Antivirus
PUP/TSUploader
14.08.20.08

Qihoo 360 Security
Malware.QVM20.Gen
1.0.0.1015

Quick Heal
Trojan.AntiFW.A5
8.14.14.00

Reason Heuristics
Adware.WebPick.Installer.H
14.8.20.18

Rising Antivirus
PE:Trojan.AntiFW!6.14A6
23.00.65.14818

Sophos
InstallRex
4.98

Vba32 AntiVirus
Downware.TSU
3.12.26.3

VIPRE Antivirus
Threat.4150696
32210

File size:
314.7 KB (322,272 bytes)

Product version:
1.0.0.3

Copyright:
Copyright © 2014 SafeSoft

Original file name:
TSULoader.exe

File type:
Executable application (Win32 EXE)

Installer:
WebPick InstalleRex (Tarma)

Language:
Language Neutral

Common path:
C:\users\{user}\downloads\best.zip.exe

Digital Signature
Signed by:
Sergey Petrov

Authority:
COMODO CA Limited

Valid from:
8/21/2013 2:00:00 AM

Valid to:
8/22/2014 1:59:59 AM

Subject:
CN=Sergey Petrov, O=Sergey Petrov, STREET=Gaydara 13, L=Kyev, S=Kyev, PostalCode=01033, C=UA

Issuer:
CN=COMODO Code Signing CA 2, O=COMODO CA Limited, L=Salford, S=Greater Manchester, C=GB

Serial number:
0AD084E865D27CD546D21DB6EDF89D48

File PE Metadata
Compilation timestamp:
3/12/2013 9:51:45 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
8.0

CTPH (ssdeep):
6144:grAbUzkuvcBYC47l2xn88NEymFTYO67qzVxzRRwj:gr1kuveY35YO67Wxz7wj

Entry address:
0x14DB

Entry point:
55, 8B, EC, 81, EC, 2C, 06, 00, 00, 53, 56, 33, DB, 57, 66, 89, 9D, DC, FB, FF, FF, 89, 5D, F4, 89, 5D, FC, FF, 15, 74, 30, 40, 00, A3, 08, 44, 40, 00, FF, 15, 70, 30, 40, 00, 8B, F8, 8D, 45, EC, 50, FF, 15, 6C, 30, 40, 00, FF, 15, 68, 30, 40, 00, 8B, F0, F7, D6, 33, F7, FF, 15, 64, 30, 40, 00, 33, F0, 8B, 45, F0, 33, 45, EC, 68, 04, 01, 00, 00, 33, F0, 8D, 85, D4, F9, FF, FF, 50, 53, FF, 15, 60, 30, 40, 00, 85, C0, 75, 41, FF, 15, 5C, 30, 40, 00, 83, F8, 78, 75, 1A, 68, A8, 32, 40, 00, E8, 43, FB, FF, FF...
 
[+]

Developed / compiled with:
Microsoft Visual C++

Code size:
7.5 KB (7,680 bytes)

The file best.zip.exe has been seen being distributed by the following 4 URLs.

http://best-new-zip-my.info/download/v34?installer_file_name=best.zip&product_name=best.zip&product_download_url=https://fs01n5.sendspace.com/dllp/a61e90ff89b619bacf92c6be1ed21131/53114ab7/000000/fgdcgx/best.zip&reffer=http://www.sendspace.com/.../fgdcgx&filesize=&product_file_name=error.txt&uuid=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

http://best-new-zip-my.info/v34?installer_file_name=best.zip&product_name=best.zip&product_download_url=https://fs01n5.sendspace.com/dllp/a61e90ff89b619bacf92c6be1ed21131/53114ab7/000000/fgdcgx/best.zip&reffer=http://www.sendspace.com/.../fgdcgx

http://www.sendspace.com/quickdownload.html?lc=fgdcgx

http://www.sendspace.com/.../fgdcgx

The executing file has been seen to make the following network communications in live environments.

TCP (HTTP):
Connects to r1.stylezip.info  (54.186.255.26:80)

TCP (HTTP):
Connects to c1.stylezip.info  (54.186.255.26:80)

 
http://c1.stylezip.info/?step_id=1&installer_id=9205064&publisher_id=205&source_id=0&page_id=0&country_code=US&locale=US&browser_id=4&download_id=27615192&external_id=0&session_id=55230384&hardware_id=64435448&installer_file_name=best.zip

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